6 btrfstune - tune various btrfs filesystem parameters
10 *btrfstune* [options] <dev> [<dev>...]
14 *btrfstune* is used to tune various btrfs filesystem parameters,you can
15 enable/disable some extended features for btrfs.
20 Updates the seeding value.
21 A positive value will enable seeding, zero will disable seeding, negtive is not allowed.
22 Enable seeding forces a fs readonly so that you can use it to build other filesystems.
24 Enable extended inode refs.
26 Enable skinny metadata extent refs.
31 *btrfstune* will return 0 if no error happened.
32 If any problems happened, 1 will be returned.
36 Written by Shilong Wang and Wenruo Qu.
40 Copyright (C) 2013 FUJITSU LIMITED.
42 License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>.
44 This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.